It was getting dark and there were walkers all around Rick's group. There were too many of them and they had nowhere to run, but before the walkers could get too close, a black horse in armor suddenly ran out of the forest with a girl on its back. There was a loud whistle and the walkers turned in her direction as the horse charged towards them and the girl began to cut their heads in half with her sword. When all the walkers were dead the horse stopped in front of Rick and his group.